<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<div style="    width: 50px;
    height: 50px;
    border: solid 1px blue;
    padding: 0 10px;
    line-height: 50px;">
			<span style="    display: inline-block;
    /* width: 20px; */
    /* height: 20px; */
    border-style: solid;
    border-width: 10px;
    border-color: red transparent transparent transparent;"></span>
		</div>
	</body>
</html>
